摘要
为解决道路交通信息采集传感器网络大规模组网及远程监控中所面临的IP互连问题,在面向交通信息采集的传感器网络互连体系基础上,设计和实现了一种具备CAN、ZigBee、以太网等多种通信接口,且能够处理区间交通参数的互连网关;通过协议转换方式实现异构网络的互连;给出了TCP/IP协议族面向交通信息采集的嵌入式精简方案。理论分析表明网络负载率、时延满足道路交通信息采集及控制的需求;实验结果验证了网络的连通性、精简TCP/IP协议栈实现的可行性以及面向交通信息采集组网及监控的可实现性。理论和实验说明,在交通信息采集传感器网络的大规模组网及远程监控中,所述IP互连方法是可行的。
Sensor network used in road traffic information acquisition should be connected with IP network to compose large-scale sensor networks and monitor traffic information remotely.A gateway with the function of processing regional traffic information and various communication interfaces including CAN,Zigbee and Ethernet,according to the architecture of traffic information acquisition networks,was designed and developed.Protocol conversion is implemented to enable the interconnection of heterogeneous networks.A simplified scheme for TCP/IP suite is presented to satisfy the constraints of traffic information acquisition in embedded system.Theoretical analysis shows that the network performances including load rate and time delay meet the requirements of traffic information acquisition and control systems.Experimental results verify the connectivity of the networks and the feasibility of the simplified TCP/IP suite.Networking and monitoring of sensor networks are also verified with the experiments.Theoretical analysis and experimental results demonstrate that the method is feasible for the connection of sensor network with IP network in composing large-scale sensor networks and monitoring traffic information remotely.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2011年第11期2596-2601,共6页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金(60874079
61174179)
教育部重点项目(108127)
轨道交通控制与安全国家重点实验室自主课题(RCS2009ZT003)
中央高校基本科研业务费专项基金(2011YJS213)资助项目
